Oil burner



April 29, 1924. L 1,491,s43

H. W. BRENT OIL BURNER Filed Jan. 30. 1921s x a* 1 I T a Wm M" Z 1 H HIgwve ntofo M m. M

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Sum new Patented Apr. 29, I924.

UNITED STATES HENRY W. BRENT, 0F BALTIMORE, MARYLAND.

OIL BURNER.

Application filed January 30, 1923. Serial No. 615,888.

To all whom it may concern.

Be it known that I, HENRY W. BRENT, a citizen of the United States,residing at Baltimore, in the county of Baltimore City and tate ofMaryland, have invented certain new and useful Improvements in OilBurners, of which the following is a specification.

This invention relates to certain new and useful improvements in burnersof oil stoves, oil heaters and the like, and it has for a leading objectthe improvement of the construction of burners of this type and theprovision of novel means for the raising and lowering of the wick.

A particular object of the present invention is the provision of wickraising means which will permit a steady unimpeded movement of the wickin either direct-ion, without possibility of jamming, buckling, or thelike. v

With the above and other objects in view my invention consists of theparts and the constructions, arrangements and combinations of partswhich I will hereinafter describe and claim.

In the accompanying drawing Figure 1 is a side elevation of a burnertube embodying my invention, showing portions broken away;

Figure 2 is an enlarged horizontal sectional view on the line 22 of Fig..1;

Figure 3 is a detailed sectional elevation of the wick raising means;and

Figure 4 is a detailed perspective of certain of the parts to behereinafter referred to.

In carrying out my invention, I may use the present improvements inconnection with the different types of burners, either with or withoutthe usual spreader plates, and

whether said burners are to be used in connection with oil stoves, oilheaters or like devices. For present illustrative purposes I have shownmy improvements as applied to the type of burners disclosed in my priorPatents Nos. 1,082,796, dated December 30, 1913, and 1,313,059, datedAugust 12, 1919. Any suitable flame spreader, not shown, may be used ifdesired, in conjunction with my improved type of burner. In the presentcase, as in the prior patents mentioned, the burner tube 1 is preferablyformed with concentric inner and outer walls 1 1" joined at the bottomand adapted to enclose between them, a circular flat wick B, the spacebetween the inner and outer walls of the burner device usually formingafont or reservoir to which oil is supplied in the usual manner.

In the construction of the burner tube such as I have specified, thewick usually has its lower end mounted in and carried by a thin metalcasing G, whose lower edge is turned up to receive the bottom of thewick. This casing is genera-lly'made of perforated sheet metal to allowthe oil to have free access to the wick, the perforations beingordinarily further employed for the reception of the pointed teeth ofthe former-type" of wick raising wheel which is mounted on a handoperated shaft. Experience has shown, however, that it is extremelydiflicult with the perforated casing and usual sharp toothed Wheelengaging the same, to uniformly or evenly raise and lower the wick, sothat the upper edge of the wick may be maintained in a true levelposition. To secure an even flame 1n devices of this character, the wickshould be adjusted to come level with the top of the outside burnertube. This is not always possible with the former burner mechanism, andit has often become necessary to remove the wick and turn the samearound, or otherwise adjust it in order to obtain a level wick edge.Considerable diflicultv in the proper leveling of the wick is due tothefact that the wickis not easily inserted in the burner tube in a trueposition, and cannot be maintained-true after insertion due largely tothe employment of the usual sharp pronged wheel and perforated wheel andperforated sheet metal casing. It has been found that in using this oldwick raising means, that the wick seems to be caused to bind more orless on one side than on the other, and consequently will be raised andlowered unevenly and with more or less difficulty. 1 V 1 p In thepresent'instance I am able to overcome the objections arising from thepresence of a crooked wick by eliminating ,the usual pronged wheel andsubstituting therefor the construction now to be described.

The outer burner tube in the present construction is formed with anoffset portion or housing D, which has an opening D therein intermediateits length. Attached to the wick casing C is a rack E, said rack havingteeth E upon its opposite edges. The wick and wick holder are sopositioned in the burner tube that the rack Ewill enter the channel"formed by the housing D, the remaining circumference of the wick holderfitting snugly against the inner wall of the burner tube. A shaft Fsupported by two spaced supporting lugs G, G, carries two toothedpinions H, Hf, positioned to respectively engage the two toothedsections of the rack E. The opposite end of the shaft F carries a handwheel K for the purpose of turning the shaft to raise and lower thewick. V

Each of the lugs G, G has a small portion of its rear edge bent to forma. flange G", said flanges being formed at opposite ends of therespective lugs as clearly shown in Fig. The flanges G are positioned sothat the rack E passes above them, as shown in Fig. 3. These flanges areso placed for the purpose ofgiving support to the rack E at this pointwhere the rack is being engaged and operated by the pinions.-

In assembling the wick within the burner tube, the former is positionedas above re ferred to with the rack E within the housmg D. The wick 1snow moved down until the rack is engaged by the pinions H, H,

' vnd further downward movement of the wick is controlled by thepinions.

By means of the racks and pinions the wick may now be raised or loweredas desired, and no impedance or difficulty willoccur in the operation ofthe wick. double racks and pinions, it is possible to impart a smoothandeasy movement to the wick and eliminate such binding as might occurif only a single rack and pinion were used.

The flanges G on the lugs G, G support;

the rack at the pointwhere the greatest strain is'placed upon it andeffectively prevent'any binding or buckling of the rack at that point.By the use of this arrangement there is no point at which the wick, thewick "to the burner tubeand each engaging one of By the provision of thesaid series of teeth; and means for rotating.

set housing formed therein, a wick holder,

a rack attached to said wick holder and mounted 1n said housing, saidrack having a series of teeth at its opposite edges; two

pinions supported by said burner tube, each engaging one of said seriesof teeth, a shaft carrying said pinions; and a hand'wheel for actuatingthe said shaft.

4:. In an oil burner, the combination of a burner tube, said tube havingan offset housing; a wick holder; a rack attached to said wick holderand mounted within said housing, said rack having teeth at its oppositeedges; two spaced lugs attached to said;

burner tube, one on either side of said rack; a shaft supported by saidlugs; two pinions mounted upon said shaft, each of said pinions beingadapted to engage one series of said teeth; and operating means carriedby said shaft, 7

5. In an oil burner, the combination of a burner-tube, said tube havingan offset hous ing; a wick holder; a rack attached to said wick holderand mounted in said housing; two lugs mounted on said burner tube onopposite sides of the'path of said rack; a shaft supported by said lugs;two pinionsmounted on said shaft, each pinion being adapted to engagesaid rack, said lugs having flanges formed at their rear to support saidrack; and means for operating said shaft.

6. In an oil burner, thecombination of a burner tube, a wick holder, arack attached to said wick holder, said rack having-teeth at itsopposite edges; two pinions attached to the burner tube and eachengaging one of said'series of teeth; supporting flanges rear- Wardly ofsaid rack; and means for operat ing said pinions. I

In. testimony whereof I hereunto athx my signature. 7

HENRY w. BRENT.

